Describe the different factors which increase the growth of microorganisms in milk. How microbial spoilage of milk can be controlled?

Milk is an excellent nutrient source for microorganisms, and its composition provides favorable conditions for their growth. Factors that increase the growth of microorganisms in milk include temperature, pH, moisture, nutrient availability, and the presence of other microorganisms.

Temperature: Milk is stored at low temperatures to reduce microbial growth. However, if milk is exposed to higher temperatures, it will lead to increased bacterial growth. The ideal temperature range for bacterial growth is between 10-45°C. The growth rate of bacteria increases with an increase in temperature, and milk stored at temperatures above 7°C can spoil quickly.

pH: The pH of milk is slightly acidic, ranging ___ ___ ________ ________ __________ __________.
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